Senior C# .NET & SQL Data Engineer (Banking, Hybrid)

Onyx-Conseil; Greater London; Hybrid; GBP 60,000 - 70,000; Full time

Benefits offered by this job

Hybrid working

Job summary

Onyx-Conseil is seeking a Software Developer with strong C# .NET and SQL Server experience for a bank-based role in Central London. The candidate will automate and streamline processes, integrate legacy systems with modern data workflows, and support cross-departmental IT initiatives.

The role requires 7+ years of hands-on development, expertise in SSIS/SSRS/SSAS, and a background in Core Banking or banking systems. Hybrid work is expected, with in-office presence required several days per week.

Qualifications

• 7+ years of hands-on C# .NET and SQL Server development.
• Strong SSIS/SSRS/SSAS experience, especially SSIS.
• Banking systems exposure preferred, Core Banking.

Responsibilities

• Develop and deliver systems to automate and streamline processes.
• Support internal IT with changes and upgrades to platforms.
• Serve as primary technical contact for in-house systems.
• Analyze issues with in-house systems (CORE, SharePoint interface, Equation, Kondor, Eximbills, end-of-day).

Skills

Software analysis

SQL Server SSIS

Data warehouse design

C# .NET

SSIS data integration

Education

Bachelor's degree

Job description

Onyx-Conseil is seeking a Software Developer with strong C# .NET and SQL Server experience for a bank-based role in Central London. The candidate will automate and streamline processes, integrate legacy systems with modern data workflows, and support cross-departmental IT initiatives.

The role requires 7+ years of hands-on development, expertise in SSIS/SSRS/SSAS, and a background in Core Banking or banking systems. Hybrid work is expected, with in-office presence required several days per week.